Great playing and deep meditation is the same. The mind goes quiet, and observation of the self deepens. Notice this artist - not his hands, but his mind. Is his mind busy making judgements about his playing? Is he worried about what other people will think of his playing? Or is he simply observing his hands peacefully?
Now the real question is - Does his mind become quiet and focused because of his awesome physical technique? Or - Does his awesome physical technique come from a quiet and focused mind?